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c++ Programming Glossary: showWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array with the branch with the loop interchange . This goes to show that even mature modern compilers can vary wildly in their ability..
http://stackoverflow.com/questions/1461432/what-is-array-decaying idiomatically so. The purpose of the three functions is to show the various techniques which don't maintain the full functionality..
When should I write the keyword 'inline' for a function/method? http://stackoverflow.com/questions/1759300/when-should-i-write-the-keyword-inline-for-a-function-method More exactly only when the function's definition can show up in multiple compilation units. It's a good idea to define..
C++ delete - It deletes my objects but I can still access the data? http://stackoverflow.com/questions/1930459/c-delete-it-deletes-my-objects-but-i-can-still-access-the-data actually deleted from the heap. Many identical trials show it is always the same specific blocks that are not deleted properly...
Is it okay to inherit implementation from STL containers, rather than delegate? http://stackoverflow.com/questions/2034916/is-it-okay-to-inherit-implementation-from-stl-containers-rather-than-delegate 2 One of the suggestions was to use free functions. I'll show it here as pseudo code typedef std vector MyObject MyCollection..
Get the IP address of the machine http://stackoverflow.com/questions/212528/get-the-ip-address-of-the-machine getifaddrs was successful ie returns 0 . I've updated it show IPv6 addresses too. #include stdio.h #include sys types.h #include..
In C++, what is a virtual base class? http://stackoverflow.com/questions/21558/in-c-what-is-a-virtual-base-class what a virtual base class is and what it means. Let me show an example class Foo public void DoSomething ... class Bar public..
Generate random numbers uniformly over an entire range http://stackoverflow.com/questions/288739/generate-random-numbers-uniformly-over-an-entire-range share improve this question Generally the high bits show a better distribution than the low bits so the recommended way..
http://stackoverflow.com/questions/356950/c-functors-and-their-uses This makes them nicely customizable. As the last lines show you often pass functors as arguments to other functions such..
Optimizing away a “while(1);” in C++0x http://stackoverflow.com/questions/3592557/optimizing-away-a-while1-in-c0x doesn't satisfy X the behaviour is undefined . We can show this as follows suppose there exists a program which does not..
When to use volatile with multi threading? http://stackoverflow.com/questions/4557979/when-to-use-volatile-with-multi-threading in the same way one would use const to help the compiler show you where you might be making a mistake in accessing some shared..
http://stackoverflow.com/questions/4757565/c-forward-declaration and a definition. A declaration just gives enough code to show what something looks like so for a function this is the return..
Unicode encoding for string literals in C++11 http://stackoverflow.com/questions/6796157/unicode-encoding-for-string-literals-in-c11
Create WCF service for unmanaged C++ clients http://stackoverflow.com/questions/686452/create-wcf-service-for-unmanaged-c-clients 2 above. Click the Go button. The Hello Service should show up in the Services list. Click the OK button to automatically..
OpenCV 2.3 C++ Visual Studio 2010 http://stackoverflow.com/questions/7011238/opencv-2-3-c-visual-studio-2010 1 retrieve the captured frame img cvQueryFrame capture show the image in the window cvShowImage mainWin img wait 10 ms for.. 2.1 on VS2010 so I wrote some instructions below that shows how to properly install and configure the x86 version of OpenCV.. name it whatever you like. After that a new window will show up. Click on the tab Application Settings and make sure the..
http://stackoverflow.com/questions/712639/understanding-the-meaning-of-the-term-and-the-concept-raii-resource-acquisiti after use. Studies of projects across many platforms show the majority of bugs are related to resource management and..
Singleton: How should it be used http://stackoverflow.com/questions/86582/singleton-how-should-it-be-used memory If you want to try something new If you want to show off how much you know Because everyone else is doing it See..
Is there any real risk to deriving from the C++ STL containers? http://stackoverflow.com/questions/922248/is-there-any-real-risk-to-deriving-from-the-c-stl-containers no need for polymorphism here either. The challenge is to show something bad happening as a consequence of using derivation..
http://stackoverflow.com/questions/988158/take-the-address-of-a-one-past-the-end-array-element-via-subscript-legal-by-the there's an obvious caveat Your example doesn't actually show an out of bounds pointer. it uses a one past the end pointer..
gdb: how to set breakpoints on future shared libraries with a --command flag http://stackoverflow.com/questions/100444/gdb-how-to-set-breakpoints-on-future-shared-libraries-with-a-command-flag Breakpoint specific settings show breakpoint pending Show debugger's behavior regarding pending breakpoints And so set..
http://stackoverflow.com/questions/1044785/c-auto-ptr-for-arrays the Windows APIs SDKs such as the Windows Media SDK Direct Show API which in order to get back some structures to call a function..
Trying to create a Math Input Panel in C# http://stackoverflow.com/questions/1623378/trying-to-create-a-math-input-panel-in-c-sharp hr g_spMIC EnableExtendedButtons VARIANT_TRUE hr g_spMIC Show return hr I call the dll function in C# and the panel pops up.. MathInputControlClass ctrl.EnableExtendedButtons true ctrl.Show I'm not sure if this is exactly how you're supposed to do it.. ctrl.EnableExtendedButtons true ctrl.Show ctrl.Close Application.ExitThread Application.Run share..
“Step over” when debugging multithreaded programs in Visual Studio http://stackoverflow.com/questions/336628/step-over-when-debugging-multithreaded-programs-in-visual-studio Tools Options 2. Expand to Environment Keyboard 3. In Show commands containing type Macros. to see all your macros. 4...
C++ : What's the easiest library to open video file http://stackoverflow.com/questions/37956/c-whats-the-easiest-library-to-open-video-file the library handle that for me. I've tried to use Direct Show with the SampleGrabber filter using this sample http msdn.microsoft.com.. for which the proper VFW codec has been installed. DirectShow standard WinXP framework it can basically load all formats you.. implemented as backend in OpenCv Highgui except for DirectShow. The default framework for Win32 OpenCV is using VFW and thus..
Viewing a dynamically-allocated array with the Xcode debugger? http://stackoverflow.com/questions/484707/viewing-a-dynamically-allocated-array-with-the-xcode-debugger question You can use gdb syntax as expressions Use Run Show Expressions... menu to show the expressions window Enter ' velocity..
OpenCV - getting the slider to update its position during video playback http://stackoverflow.com/questions/5047913/opencv-getting-the-slider-to-update-its-position-during-video-playback int main int argc char argv cvNamedWindow The Tom 'n Jerry Show CV_WINDOW_AUTOSIZE g_capture cvCreateFileCapture argv 1 int.. if frames 0 cvCreateTrackbar Position The Tom 'n Jerry Show g_slider_position frames onTrackbarSlide IplImage frame while.. if frame break cvSetTrackbarPos Position The Tom 'n Jerry Show g_slider_position cvShowImage The Tom 'n Jerry Show frame..
Exceptions and error codes: mixing them the right way http://stackoverflow.com/questions/5805410/exceptions-and-error-codes-mixing-them-the-right-way of the exceptions and error codes mixing conception A No. Show me if you find one. IMO isolating error returning functions..
From C ++ to Haskell Classes and States http://stackoverflow.com/questions/6225483/from-c-to-haskell-classes-and-states Fields For A data FieldsA FieldsA x_A Int deriving Show A Class Constructor constA Int FieldsA constA FieldsA class.. fa return data FieldsB FieldsB fa FieldsA x_B Int deriving Show constB Int Int FieldsB constB int1 int2 FieldsB fa constA int1..
Why use Precompiled Headers (C/C++)? http://stackoverflow.com/questions/903228/why-use-precompiled-headers-c-c production versions #ifndef PRODUCTION #define eMsg x x Show error messages #define eAsciiMsg x x #else #define eMsg x L..
http://stackoverflow.com/questions/916259/win32-bring-a-window-to-top non client area etc. This media player is writen in Direct Show. I use IVideoWindow put_Owner to put video window as the video.. put_Owner to put video window as the video owner Direct Show internally creates a sub video window as a child of the video.. in hwnd2. I found the reason which is because of Direct Show. I use multithread to execute it and then the problem's solved...
Is there any real risk to deriving from the C++ STL containers? http://stackoverflow.com/questions/922248/is-there-any-real-risk-to-deriving-from-the-c-stl-containers question not a discussion of better or worse practice. Show the worst thing that can happen as a consequence of deriving..
Show window in Qt without stealing focus http://stackoverflow.com/questions/966688/show-window-in-qt-without-stealing-focus window in Qt without stealing focus I'm using the Qt library.. me a while to find it but I found it setAttribute Qt WA_ShowWithoutActivating This forces the window not to activate. Even..
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